Don't u dare put that on one of the best six guns made. They made to be shot open sighted. You ever try "can rolling" with a scope? C'mon Man don't do it. Throw that scope on a Mag of some sort where you need it for long range (50yds+).
Used to have my FFL and when I decided to close up shop I bought a few guns that were on my must have list. The Single Six was one of the ones I have kept. Mine was bought in 1992 and I'll bet it hasn't had a box shot thru it. It looks just like yours. Seeing yours makes me want to shoot mine a little more. Nice gun.
Here's mine. (Right click the photo and choose "view photo" and you can see the whole image.)
I've gone back to the iron sights just because the scope on a Single Six looks weird.
But the factory sights were hard for me to see.
So I painted the brass dot on the front sight with red fingernail polish. Now I can at least see the front sight.
Mine is the New Model and I hated the fact that the cylinder would only turn in one direction. I installed a free spin pawl and made it better. I also dropped one leg of the trigger spring and made the trigger a little better.